Arizona on Tuesday became the first state to file criminal charges against Kalshi, accusing the prediction market company of operating an illegal gambling business within its borders, a significant escalation in the fight to regulate the popular platform.
The 20-count charging document accuses Kalshi of accepting bets on political outcomes, college sporting competitions, and individual player performance in violation of Arizona’s gambling laws. The state prohibits operating an unlicensed wagering business and bans betting on elections.
“Arizona will not be bullied into letting any company place itself above state law,” said Democratic Attorney General Kris Mayes.
The criminal case marks a new front in a high-stakes legal battle over whether prediction markets should be subject to the same rules as gambling companies.
President Donald Trump’s administration has thrown its support behind the multibillion-dollar prediction market industry, further amplifying a state-versus-federal fight for regulatory control. The outcome could have sweeping implications for how sports betting — which makes up roughly 90% of Kalshi’s trading volume — is regulated in the U.S.
Kalshi insists it’s a financial marketplace rather than a gambling operation and should only have to answer to federal regulators with the Commodity Futures Trading Commission, which agrees it has exclusive oversight.
Kalshi's operations allow customers to buy and sell “Yes” or “No” contracts tied to the probable outcome of events, such as political speeches and weather forecasts. The legal issues surrounding Kalshi highlight a critical moment for the future of prediction markets as multiple states take varying actions against it.
The charges filed just ahead of the NCAA basketball tournaments hint at Arizona's concern over the burgeoning activity in prediction markets. As lawsuits and regulatory scrutiny continue, the broader implications for this emerging industry remain uncertain.
